ucar.unidata.geoloc.projection

Class RotatedPole

java.lang.Object

ucar.unidata.geoloc.ProjectionImpl

ucar.unidata.geoloc.projection.RotatedPole

All Implemented Interfaces:

java.io.Serializable, Projection

public class RotatedPole
extends ProjectionImpl

Rotated-pole longitude-latitude grid. This is probably the same as rotated lat lon, using matrix to do rotation. Follows CF convention with "north_pole lat/lon", whereas RotatedLatLon uses south pole.

See Also:

Serialized Form

Field Summary

Fields inherited from class ucar.unidata.geoloc.ProjectionImpl

atts, defaultMapArea, EARTH_RADIUS, INDEX_LAT, INDEX_LON, INDEX_X, INDEX_Y, isLatLon, name, PI, PI_OVER_2, PI_OVER_4, TOLERANCE

Constructor Summary

Constructors

Constructor and Description
RotatedPole() Default Constructor, needed for beans.
RotatedPole(double northPoleLat, double northPoleLon) Constructor.

Method Summary

Modifier and Type	Method and Description
ProjectionImpl	constructCopy() copy constructor - avoid clone !!
boolean	crossSeam(ProjectionPoint pt1, ProjectionPoint pt2) Does the line between these two points cross the projection "seam".
boolean	equals(java.lang.Object o) Returns true if this represents the same Projection as proj.
ProjectionPoint	getNorthPole()
int	hashCode()
ProjectionPoint	latLonToProj(LatLonPoint latlon, ProjectionPointImpl destPoint) Transform a "real" longitude and latitude to the rotated longitude (X) and rotated latitude (Y).
java.lang.String	paramsToString() Get a string representation of the projection parameters
LatLonPoint	projToLatLon(ProjectionPoint ppt, LatLonPointImpl destPoint) Transform a rotated longitude (X) and rotated latitude (Y) to a "real" longitude-latitude pair.

Methods inherited from class ucar.unidata.geoloc.ProjectionImpl

addParameter, addParameter, addParameter, findProjectionParameter, getClassName, getDefaultMapArea, getDefaultMapAreaLL, getHeader, getName, getProjectionParameters, getProjectionTypeLabel, isLatLon, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProjBB, projToLatLon, projToLatLon, projToLatLon, projToLatLon, projToLatLon, projToLatLonBB, projToLatLonBBold, setDefaultMapArea, setName, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ucar.unidata.geoloc.Projection

latLonToProj, projToLatLon

Constructor Detail

RotatedPole

public RotatedPole()

Default Constructor, needed for beans.

RotatedPole

public RotatedPole(double northPoleLat,
                   double northPoleLon)

Constructor.

Method Detail

getNorthPole

public ProjectionPoint getNorthPole()

constructCopy

public ProjectionImpl constructCopy()

Description copied from class: ProjectionImpl

copy constructor - avoid clone !!

Specified by:

constructCopy in class ProjectionImpl

Returns:

a copy of this Projection. TODO return Projection in ver6

paramsToString

public java.lang.String paramsToString()

Description copied from class: ProjectionImpl

Get a string representation of the projection parameters

Specified by:

paramsToString in interface Projection

Specified by:

paramsToString in class ProjectionImpl

Returns:

string representation of the projection parameters

latLonToProj

public ProjectionPoint latLonToProj(LatLonPoint latlon,
                                    ProjectionPointImpl destPoint)

Transform a "real" longitude and latitude to the rotated longitude (X) and rotated latitude (Y).

Specified by:

latLonToProj in interface Projection

Specified by:

latLonToProj in class ProjectionImpl

Parameters:

latlon - convert from these lat, lon coordinates

destPoint - the object to write to

Returns:

the given destPoint

projToLatLon

public LatLonPoint projToLatLon(ProjectionPoint ppt,
                                LatLonPointImpl destPoint)

Transform a rotated longitude (X) and rotated latitude (Y) to a "real" longitude-latitude pair.

Specified by:

projToLatLon in interface Projection

Specified by:

projToLatLon in class ProjectionImpl

Parameters:

ppt - convert from these projection coordinates

destPoint - the object to write to

Returns:

LatLonPoint convert to these lat/lon coordinates

crossSeam

public boolean crossSeam(ProjectionPoint pt1,
                         ProjectionPoint pt2)

Description copied from class: ProjectionImpl

Does the line between these two points cross the projection "seam".

Specified by:

crossSeam in interface Projection

Specified by:

crossSeam in class ProjectionImpl

Parameters:

pt1 - the line goes between these two points

pt2 - the line goes between these two points

Returns:

false if there is no seam

equals

public boolean equals(java.lang.Object o)

Description copied from class: ProjectionImpl

Returns true if this represents the same Projection as proj.

Specified by:

equals in interface Projection

Specified by:

equals in class ProjectionImpl

Parameters:

o - projection in question

Returns:

true if this represents the same Projection as proj.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object